/*-
 * Copyright (c) 1991 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *  This product includes software developed by the University of
 *  California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */
#ifndef _NLIST_H_
#define _NLIST_H_
#include <sys/types.h>

/*
 * Symbol table entry format.
 */
struct  nlist {
    char    *n_name;        /* In memory address of symbol name,
                             * or string table offset (file) */
    u_short n_len;          /* Length of name in bytes */
    u_short n_type;         /* Type of symbol - see below */
    u_int   n_value;        /* Symbol value */
};

/*
 * Simple values for n_type.
 */
#define N_UNDF  0x00        /* undefined */
#define N_ABS   0x01        /* absolute */
#define N_TEXT  0x02        /* text segment */
#define N_DATA  0x03        /* data segment */
#define N_BSS   0x04        /* bss segment */
#define N_STRNG 0x05        /* string segment (for assembler) */
#define N_COMM  0x06        /* .comm segment (for assembler) */
#define N_FN    0x1f        /* file name */

#define N_TYPE  0x1f        /* mask for all the type bits */
#define N_EXT   0x20        /* external (global) bit, OR'ed in */
#define N_WEAK  0x40        /* weak reference bit, OR'ed in */
#define N_LOC   0x80        /* local, for assembler */

/*
 * Get symbols from a file.
 */
int nlist (char *name, struct nlist *list);

/*
 * Get kernel symbols.
 */
int knlist (struct nlist *list);

#endif  /* !_NLIST_H_ */
